"When there's a pileup of events, when the federal government does not do it, the state of New York has to lead the way," said state Assemblyman Joseph Lentol, a Brooklyn Democrat and co-sponsor.
Chris Thiel of North Tonawanda has a pistol permit and belongs to a pistol league but doesn't own a pistol. He described himself as a hobbyist and said he's been thinking about buying an AR-15.
"Say this goes through and another tragedy happens and in New York state," he said. "You've got to do more then? When does it end?"
Besides outlawing a broader array of military-style weapons, the measure restricts ammunition magazines to seven rounds, down from the current 10, creates a more comprehensive database of people barred from owning guns, and makes New York the first state to require background checks to buy bullets. The system will also help flag customers who buy large amounts of ammo.
In another provision, therapists, doctors and other mental health professionals will be required to tell state authorities if a patient threatens to use a gun illegally. The patient's weapon could then be taken away.
Richard Aborn, president of the Citizens Crime Commission of New York City, said Cuomo clearly understood gun violence is a complex issue requiring broader solutions than simply banning a particular weapon. "I think that's an important message for the nation," he said.
In a statement, the National Rifle Association said: "These gun control schemes have failed in the past and will have no impact on public safety and crime."
President Barack Obama will unveil his own proposals in response to the Newtown tragedy on Wednesday. He favors sweeping gun legislation, including a ban on assault weapons. But because of powerful opposition from the gun lobby, he is said to be weighing 19 steps he could take through executive action alone.